Most of these reviews are pathetic complaints about the casting of one individual based on personal dislike of their real world character. Nothing to do with the series - and if you knew anything about the story and how Nadine develops, you'd probably approve of the casting. If you're going to offer a review, make it about the actual programme, not a vent for your own pointless prejudice.
For my part, I think the series has a lot of promise. I like the way they have refined and shaped King's original storylines, glossed over some which would have been way too long (eg the journey through the tunnel out of NY city) but the characters are developing in interesting ways and Randall Flagg is as mean as you'd have hoped. Looking forward to the rest of it!